from pathlib import Path
import pytest
from numpy.testing import assert_equal

from ..pattern import Pattern
from ..library import Library
from ..file import oasis


def test_oasis_roundtrip(tmp_path: Path) -> None:
    # Skip if fatamorgana is not installed
    pytest.importorskip("fatamorgana")

    lib = Library()
    pat1 = Pattern()
    pat1.polygon((1, 0), vertices=[[0, 0], [10, 0], [10, 10], [0, 10]])
    lib["cell1"] = pat1

    oas_file = tmp_path / "test.oas"
    # OASIS needs units_per_micron
    oasis.writefile(lib, oas_file, units_per_micron=1000)

    read_lib, info = oasis.readfile(oas_file)
    assert "cell1" in read_lib

    # Check bounds
    assert_equal(read_lib["cell1"].get_bounds(), [[0, 0], [10, 10]])